Other nodules.

 

Note:

Juxtapleural nodules: Solid; smooth margins; and oval,lentiform,or triangular shape.
Airway nodules: A. Endotracheal or endobronchial abnormalities that are segmental or more proximal are classified as Lung-RADS 4A. B. Subsegmental and/or multiple tubular endobronchial abnormalities favor an infectious process; if no underlying obstructive nodule is identified, these lesions may be classified as Lung-RADS 0 (likely infectious or inflammatory) or 2 (benign). C. The presence of air in segmental or more proximal airway abnormalities often favors secretions; if no underlying soft tissue nodule is identified, these findings may be classified as Lung-RADS 2.
Cavitary nodules: Wall thickening is the dominant feature; manage as a solid nodule (total mean diameter) instead of as an atypical pulmonary cyst.